> -----Original Message----- > From: u-boot-boun...@lists.denx.de [mailto:u-boot- > boun...@lists.denx.de] On Behalf Of fgd > Sent: Tuesday, January 19, 2010 1:52 PM > To: u-boot@lists.denx.de > Subject: [U-Boot] u-boot fails to read from nand flash in omap3 > > > Hi everyone, > I've recently been playing with an omap3 beagle board and I've found > a > problem that I think involves the reading of nand memory... > I have recompiled u-boot for the beagle board (I just changed its > prompt, as > a simple test to check that it's my u-boot and not the one that was > there [Hiremath, Vaibhav] U-Boot version may be useful here.
> before, and I used the default configs for the beagle), then I have > loaded > u-boot and the x-loader into flash, and I have succesfully rebooted > and seen > 'my' u-boot prompt... > after that, I wanted to load a linux kernel and a file system into > nand > flash, instead of using the external memory card (if I boot a kernel > stored > there, it works), so I go and load an uImage into flash, then read > it back > to RAM, and boot from there, and it still works, BUT, as soon as I > reset the > OMAP, when it tries to copy the kernel data stored in flash into RAM > to boot > from it, the nand reading operation will fail, and if I try to boot > that > kernel it will complain about a CRC checksum error... > the exact error looks like this: > # nand read ${loadaddr} 280000 400000 > > NAND read: device 0 offset 0x280000, size 0x400000 > NAND read from offset 280000 failed -74 > [Hiremath, Vaibhav] Can you please provide exact steps which you are following for NAND write and read operation? > note that this just happens after I reset the board... I thought it > could be > a hardware problem with my board, but I've tried in a different > board (an > omap3 evm) and I'm getting the same thing, so I think I might be > missing [Hiremath, Vaibhav] I am working on OMAP3EVM and it is working fine for me. It looks like somehow NAND is getting corrupted, detailed steps required to comment anything on this. Thanks, Vaibhav > something... > has anyone of you tried something like this or has encountered any > similar > problem? any help will be greatly appreciated, if you need any extra > info > about what I have done just tell me... > thanks a lot in advance, regards > > Fernando > -- > View this message in context: http://old.nabble.com/u-boot-fails-to- > read-from-nand-flash-in-omap3-tp27222315p27222315.html > Sent from the Uboot - Users mailing list archive at Nabble.com. > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot